diff --git a/simulator/RPi/GPIO.py b/simulator/RPi/GPIO.py
new file mode 100644
index 0000000..de9026b
--- /dev/null
+++ b/simulator/RPi/GPIO.py
@@ -0,0 +1,18 @@
+print("Using fake GPIO driver.")
+
+BOARD = "board"
+IN    = "input"
+OUT   = "output"
+
+def cleanup():
+	print("> GPIO: cleaning up!")
+
+def output(pin, voltage):
+	state = "on" if (voltage == 1) else "off"
+	print("> GPIO setting pin %s to %s." % (pin, state))
+
+def setmode(mode):
+	print("> GPIO setting mode: %s." % mode)
+
+def setup(pin, iomode):
+	print("> GPIO setting up pin: %s, %s." % (pin, iomode))
diff --git a/simulator/RPi/__init__.py b/simulator/RPi/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/simulator/__init__.py b/simulator/__init__.py
new file mode 100644
index 0000000..1921bf5
--- /dev/null
+++ b/simulator/__init__.py
@@ -0,0 +1,15 @@
+
+import os
+import sys
+#######################################################
+#                                                     #
+# Add simulator/ directory to the module search path. #
+#                                                     #
+#######################################################
+sys.path.insert(0, os.path.join(os.getcwd(), "simulator"))
+
+
+
+print("Welcome to the Workantile Door System Simulator!")
+import doors
+from doors import *
diff --git a/simulator/doors.py b/simulator/doors.py
new file mode 120000
index 0000000..81fb381
--- /dev/null
+++ b/simulator/doors.py
@@ -0,0 +1 @@
+../doors.py
\ No newline at end of file
diff --git a/simulator/serial.py b/simulator/serial.py
new file mode 100644
index 0000000..e73c01b
--- /dev/null
+++ b/simulator/serial.py
@@ -0,0 +1,18 @@
+print("Using fake serial driver.")
+
+import random
+import string
+
+class Serial:
+	def __init__(self, path, baudrate, timeout):
+		self.path     = path
+		self.baudrate = baudrate
+		self.timeout  = timeout
+
+	def read(self, count):
+		lst = [random.choice(string.hexdigits) for n in range(count - 2)]
+		ret = "A" + "".join(lst) + "D"
+		return ret.encode()
+
+	def flushInput(self):
+		pass
diff --git a/simulator/urllib/__init__.py b/simulator/urllib/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/simulator/urllib/request.py b/simulator/urllib/request.py
new file mode 100644
index 0000000..711866c
--- /dev/null
+++ b/simulator/urllib/request.py
@@ -0,0 +1,24 @@
+print("Using fake urllib module.")
+
+import random
+
+class Request:
+	def __init__(self, url):
+		self.url = url
+
+	def __enter__(self):
+		return self
+
+	def __exit__(self, type, value, tb):
+		pass
+
+	def read(self):
+		if random.randint(0, 1) == 0:
+			return "OK".encode()
+		return "ERROR".encode()
+
+
+
+def urlopen(url):
+	print("> URLLIB: opening url %s" % url)
+	return Request(url)